This is the primary source for the latest "K Series" NVR firmware. Hikvision Download Center
Often the most up-to-date repository for European models. ds7616nik2 firmware link
Under the section, click Browse and select the firmware file. This is the primary source for the latest
Always read the PDF release notes included with the download to see if a "bridge" firmware is required before jumping to the latest version. ds7616nik2 firmware link
Finding and Updating Firmware for the Hikvision DS-7616NI-K2 NVR
Click . The device will reboot automatically once finished. Method 2: Via USB Drive
Before downloading, log into your NVR via a web browser or the local monitor: Go to > System > System Settings . Check the Firmware Version and Build Date .